A cooperative processing system includes an operation terminal and a cooperative processing device connected to each other, and is connectable to a plurality of electronic devices. The cooperative processing system causes one of electronic devices to function as an input device to cause electronic data to be input therefrom and one of the electronic devices to function as an output device to output the electronic data. The cooperative processing system includes an obtaining unit to obtain input device information to specify the input device and output device information to specify the output device, an input control unit to cause the input device to input electronic data through a first interface according to the input device information, and an output control unit to cause the output device to output the electronic data through a second interface according to the output device information in an format appropriate for the output device.